Hello All We have brand new server with RHEL 5.5 installed. We are getting below message in dmesg and server is not responding "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. gzip D ffffffff80151248 0 31591 31568 (NOTLB) ffff8116c040bbd8 0000000000000086 ffff8121243c4d00 ffffffff8868e063 ffff81247f97fc00 0000000000000009 ffff811b55ee07a0 ffff81127fca7100 0003a649e7db97bf 000000000001aede ffff811b55ee0988 0000000fc040bb58 Call Trace: [<ffffffff8868e063>] :nfs:nfs_readpages+0x2cc/0x2e9 [<ffffffff8006f1f5>] do_gettimeofday+0x40/0x90 [<ffffffff80028adc>] sync_page+0x0/0x43 [<ffffffff800647ea>] io_schedule+0x3f/0x67 [<ffffffff80028b1a>] sync_page+0x3e/0x43 [<ffffffff8006492e>] __wait_on_bit_lock+0x36/0x66 [<ffffffff8003ff92>] __lock_page+0x5e/0x64 [<ffffffff800a1bd2>] wake_bit_function+0x0/0x23 [<ffffffff8000c2e7>] do_generic_mapping_read+0x1df/0x354 [<ffffffff8000d0fb>] file_read_actor+0x0/0x159 [<ffffffff8000c5a8>] __generic_file_aio_read+0x14c/0x198 [<ffffffff80016dd4>] generic_file_aio_read+0x34/0x39 [<ffffffff8000ce24>] do_sync_read+0xc7/0x104 [<ffffffff8000e324>] current_fs_time+0x3b/0x40 [<ffffffff800a1ba4>] autoremove_wake_function+0x0/0x2e [<ffffffff80063a8f>] __sched_text_start+0x6cf/0xbd6 [<ffffffff8000b6b0>] vfs_read+0xcb/0x171 [<ffffffff80011c01>] sys_read+0x45/0x6e [<ffffffff8005e28d>] tracesys+0xd5/0xe0 Can some body help to resolve this?. Rgds Nitin
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